/*
 * Copyright 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.compose.runtime.mock

import androidx.compose.runtime.Applier

class EmptyApplier : Applier<Unit> {
    override val current: Unit = Unit
    override fun down(node: Unit) {}
    override fun up() {}
    override fun insertTopDown(index: Int, instance: Unit) {
        error("Unexpected")
    }
    override fun insertBottomUp(index: Int, instance: Unit) {
        error("Unexpected")
    }
    override fun remove(index: Int, count: Int) {
        error("Unexpected")
    }
    override fun move(from: Int, to: Int, count: Int) {
        error("Unexpected")
    }
    override fun clear() {}
}
